Air pressure type water pump

The invention discloses an air pressure type water pump which comprises a shell provided with a water inlet and a water outlet, and is characterized by further comprising an air inlet pipe, a vacuum generating pipe and an air outlet pipe, an air inlet of the vacuum generation pipe is connected to the air inlet pipe, and an air outlet is formed outside the shell; a nozzle is arranged in the vacuum generation pipe, the inner diameter of the nozzle is smaller than that of the vacuum generation pipe, a cavity is further formed between the nozzle on the vacuum generation pipe and the air outlet, and an air suction port is formed in the cavity and located in the shell; the air inlet end of the air outlet pipe is connected to the air inlet pipe, and the air outlet end of the air outlet pipe is located in the shell. The pump is high in efficiency, large in lift, convenient to operate and not prone to damage. 本发明公开了一种气压式水泵，其包括壳体，壳体上设置有进水口和出水口，其特征在于，还包括进气管、真空发生管、出气管；真空发生管的进气口连接在进气管上，出气口设置于壳体外；真空发生管中设置有喷嘴，喷嘴的内径小于真空发生管的内